docs: def slices(self):
          """
          A list of tuples, where each tuple contains two slices
          representing the minimal box that contains the labeled region.
  
          The list starts with the *non-zero* label.  The returned list
          has a length equal to the number of labels and matches the order
          of the ``labels`` attribute.
          """
  
          from scipy.ndimage import find_objects
  
          return [slc for slc in find_objects(self._data) if slc is not None]